Shoe machine



July 6, 1937. J. c. JORGENSEN SHOE MACHINE Filed Feb. 14, 1936 4 Sheets-Sheet 1 y 1937- J. c. JORGENSEN 2,085,755

SHOE MACHINE Filed Feb. 14, 1936 4 sheet s-shee'b 2 Fig A A/70F W fly- M @M/n July 6, 1937. .1. c. JORGENSEN SHOE MACHINE 4 Sheets-Sheet 4 Filed Feb. 14, 1936 Patented July 6, 1937 SHOE MACHKNE application February 14, 1935, Serial No. 63,909

23 Claims.

This invention relates to machines for use in the manufacture of shoes, and more particulariy to means for presenting the work in position to be operated upon in such machines. The invention is herein illustrated as applied to a heel-end lasting machine of the same general character as disclosed in United States Letters Patent No. 2,059,241, granted on November 3, 1936 upon an application of mine, but it is to be understood that the invention is not limited to machines of that particular character or to machines for lasting shoes.

The machine shown in the above-mentioned Letters Patent comprises mechanisms which operate automatically upon a shoe in a cycle of operations of the machine, and a shoe support or jack arranged. to be swung by the operator to carry the shoe lengthwise against a heel-end abutment and including a post arranged also so be moved upwardly by the operator to carry the shoe heightwise against a holddown prior to the starting of the cycle of operations. Ihe present invention, in its illustrative embodiment, provides fluid-pressure means for thus swinging the 3 jack and raising the post, thereby not only relieving the operator of the labor required heretofore in presenting the work, but also accelerating this operation and accordingly increasing the output of the machine. The construction herein shown comprises a fluid-operated member movable by pressure of fluid against it, and means for operating the jack and its post to impart the lengthwise and heightwise movements to the shoe by the movement of this member. The swinging of the jack and the lifting of the post are conveniently effected, as heretofore, through mechanism so constructed and arranged that it tends in operation to produce both these results, and the m invention further provides novel controlling means for preventing the lifting of the post by this mechanism until the shoe has been carried to a position under the holddown by the swinging of the jack. For better insurance of a proper coordination of the different movements of the shoe, there is also provided means, herein shown as an air check, which by retarding the swinging of the jack insures the lifting of the post by the above-mentioned mechanism as soon as permitted by its controlling means. The retarding action of this air check is preferably so adjusted that the shoe is carried into engagement with the end abutment and the holddown at substantially the same time, thereby avoiding any objectionable rubbing action of the abutment or the holddown on the shoe.

In the machine shown in the above-mentioned Letters Patent there are included mechanisms which automatically assume control of the jack 5 and its post near the beginning of the cycle of operations of the machine; and preferably, in accordance with a further feature of this invention, the fluid-pressure means is rendered inoperative when these mechanisms become effective. For this purpose the construction herein shown includes means which operates automatically at the required time to disconnect valve mechanism of the fluid-pressure means from a member which operates that mechanism. In accordance with still other featuresof the invention there ar provided novel means for variably determining the speed of the movement of the jack by the fluid-pressure mechanism, novel means whereby the force with which the shoe is controlled. by the fluid-pressure mechanism may be somewhat relieved to facilitate adjustment of the shoe, and novel means for initiating return movement of the jack after the operations on the shoe have been completed.

The above and other features of the invention, including various novel details of construction and combinations of parts, will now be more particularly described with reference to the accompanying drawings and pointed out in the claims.

In the drawings,

Fig. 1 is a view in left-hand side elevation of the lower portion of a heel-end lasting machine of the character disclosed in the previously mentioned Letters Patent with the present inven- 35 tion embodied therein, parts of the structure being broken away; i

Fig. 2 is a plan View of a portion of the structure shown in Fig. l, with parts broken away;

Fig. 3 is a section on the line III-III of Fig.2; 40 Fig. l is a section on the line IV-IV of Fig. 3; Fig. 5 is a section on the line VV of Fig. 2;

Fig. 6 is a section on the line VI-VI of Fig. I; Fig. '1 is a section on the line VIIVII of Fig.

1; and

Fig. 8 is a view partly in left-hand side eleva- 'tion and partly in section showing portions of the shoe support or jack and of other parts inv their relation to a shoe presented in position to be operated upon.

As more fully disclosed in the previously mentioned Letters Patent, the machine includes in its organization a heel band 2 (Fig. 8) arranged to embrace the heel end of the shoe and to serve as an abutment against which the heel-end face of the shoe is forced by movement of the shoe support or jack hereinafter described, and a holddown 4 arranged to engage the: bottom of the heel end of the shoe and against which the shoe is forced upwardly by a part of the jack. The shoe is thus positioned against the heel band and the holddown prior to the initiation of the cycle of power operations of the machine, in which cycle of operations the margin of the heel end of the upper is wiped inwardly over the insole or other shoe bottom part by wipers 53, one of which is shown in Fig. 8, and tacks are driven through the wipers by drivers 8 to fasten the upper in lasted position.

The shoe support or jack includes a heel pin or spindle I B and a toe rest l2 both carried by a post i 4 which is mounted for upward and downward movements in a holder is supported on two pins 18 (Fig. l) for limited swinging movements in directions laterally of the shoe, as fully disclosed in the previously mentioned Letters Pat-- ent. Through parts also fully shown and described therein the post l4 at its lower end is controlled by a rod 29 movable upwardly and downwardly in a casting 22 which supports the abovementioned pins it, this rod being connected at its lower end to a slide 24 also movable upwardly and downwardly in the casting 2'2. A flange 26 on the rod 2:) determines by engagement with the casting 22 the initial lowered position of the rod and of the post I l, and it is by upward movement of the slide 24 that the post is raised to force the shoe against the holddown l. When the parts are in their initial positions, however, the shoe is not located beneath the holddown, but forwardly thereof, the casting 22 being for this purpose mounted for swinging movements with the other jack parts about pins 23, one of which is shown in Fig. 1; and before the shoe is raised by the slide 2 3 it is carried rearwardly toward the heel band 2 and to a position under the hold down by rearward swinging movement'of the jack. For determining the initial forwardly inclined position of the jack there is pivotally connected to a pair of upwardly extending arms 39 on the casting 22 abar 32 which is mounted in a slideway formed in a member 34, this member being mounted to rock about a shaft 36 supported in hearings in the frame for a purpose hereinafter described. Near its rear end the bar 32 carries a pin 38 arranged to engage a shoulder on the member fi l to limit the forward swinging movement of the jack.

The rearward swinging movement of the jack to carry the heel end of the shoe against the heel band 2 and the upward movement of the post It to force the shoe against the holddown 4 are effected through a lever 48 fulcrumed on a rod 42 which is mounted on a bracket 44 on the lower end of the jack casting 22. The forward end of this lever bears against the lower end face of the slide 2d, and connected to the rear end of the lever is a link 35 for operating it. It will be evident that by reason of the relation of the link 48 to the pins 23 the link by its pull on the lever 48 tends to swing the jack rearwardly about these pins as well as to raise the slide 24 by swinging the. lever about its fulcrum: 42. These parts are of substantially the same construction as disclosed in the previously mentioned Letters Patent; but whereas in the machine therein shown the link corresponding to the link 4% was operated by a treadle for moving the jack and its post id in the manner described, the present inaosajrst vention provides for this purpose automatically operating fluid-pressure means. This fluid-pressure means includes a casting 43 secured to the frame of the machine and serving in part as a container for oil, as hereinafter more fully described. Formed as a part of the casting 68 is a cylinder 5t (Figs. 4 and 5) in which is mounted for upward and downward movements a piston 52. The cylinder 56 communicates at its lower end with an oil chamber 54, and a projection 56 on the lower end of the piston 52 serves by engagement with the lower wall of the chamber 54 to limit downward movement of the piston. The piston 52 at its upper end is in engagement with a rod 58 adjustabiy threaded in a horizontal arm 66 (Figs. 2 and 5) which is secured to the upper end of a plunger or bar 62 movable vertically in a slideway in the casting 53. the bar being confined in the slideway by a plate fast on the casting. At its lower end the bar 62 is pivotally connected (Fig. 3) to a link 56 which is connected to one arm of a lever 68 (Fig. I.) mounted on a bracket ill at the base of the machine. The other arm of the lever 68 is connected to the previously mentioned link 46.-

It will thus be seen that upward movement of the piston 52 serves to raise the bar 62 and thereby to swing the lever 68 in the direction to pull downwardly on the link 36 to swing the jack and raise the slide 24 and the post I 4 as hereinbefore decribed.

In order to insure against raising the post and the shoe until the shoe is located under the holddown i, there is provided by this invention means which prevents swinging movement of the lever to about its fulcrum rod 42 until the jack has been swung rearwardly far enough to carry the heel end of the shoe to a position under the holddown. This means comprises a control block 12 (Figs. 1 and 6) having a curved face 14 concentric with the axis of swinging movement of the jack and engaged by a roll 16 on the rear end of the lever 49. The block if. is slidingly movable along a guideway on a bracket l8 fast on the base of the machine and is controlled by a crank pin L til formed on one end of a shaft 32 which is mounted in a bearing in the bracket 78 and in another bearing in the frame. A plate 84 (Fig. 6) fast on the frame and engaging a shoulder on the shaft 82 assists in holding the shaft against lengthwise movement. Fast on the reduced outer end of the shaft is a'knob 86 for turning it, its turning movement being limited by a stop screw 88 mounted in the frame and extending through a slot 89 in the hub of the knob 85, this slot being indicated by dotted lines in Fig. 6. It will be understood that by turning the knob 86 the block '12 is adjusted through the crank pin 30 to vary the time when the roll 76 is released by the block to permit upward movement of the slide 2 3.

For better insurance that the shoe will not be forced rearwardly against the heel band before it is raised by the lever 40, there is provided an air check comprising'a piston 92 (Fig. 1) operating in a cylindrical chamber 94 formed in the member 36 in which the bar 32 is slidingly mounted as hereinbefore described, the piston being formed on one end of a rod 96 the other end of which is connected to the bar 32. Air is permitted to escape from the chamber 94 through a port 98 (Fig. 7), the escape of the air being restricted and controlled by a valve I00. A spring I02 tends to force the valve I00 toward a conical seat provided therefor in the member 34, but the valve is held slightly open by a finger I04 in engagement therewith, this finger being formed on a screw I06 adjustably threaded in the member 34. Air escaping past the valve I66 passes through an opening I66 in the member 64. It will be understood that by adjusting the valve I66 by means of the screw I66 the cushioning effect of the air check may be varied. The resistance of the air check to the swinging of the jack, which is especially effective near the end of the swinging movement, insures that the lever 46 will begin to raise the post I4 as soon as permitted by the block 12 while the swinging of the jack continues, the valve I06 being preferably so adjusted that the shoe is carried into engagement with the heel band and the holddown at substantially the same time.

To initiate the return movement of the jack sothat the remainder of its movement may be completed by gravity there is provided a bellcrank lever IIH (Figs. 1 and 3) mounted for frame.

swinging movement on a bracket I I2 on the frame and having on one arm'thereof a roll II4 arranged to rest on the upper end of the bar 62. A spring I16 connected to the bell-crank lever and to a finger I I8 on the plate 64 tends to swing the bell-crank lever in a counterclockwise direction. It is swung in the opposite direction against the resistancepf this spring by the upward movement of the bar 62 to operate the jack and its post I4. One arm of the bell-crank lever has a rounded end I26 arranged to engage the head of a rod I22 horizontally movable in the frame of the machine but limited in its forward movement by engagement of its head with the At its forward end this rod is arranged to engage a plate I24 on the jack. When the jack is released near the end of the cycle by means hereinafter described, the bell-crank lever H6 is swung by the spring H6 and acts through the rod I22 to push the jack forwardly to such a position that the remainder of its forward movement will be readily effected by gravity.

In addition to the chamber 54 the casting 46 is provided with'two other chambers I26 and I28. The chamber I26 is partially filled with fluid, preferably oil, and has two covers I30 and I 32 through several openings in which this chamber is in communication with the atmosphere. The

oil is drawn from the chamber I26, through a strainer I34 and a pipe I36, by a continuously operating gear pump I38 (Fig. 1) which is operated through a pulley I46 by a belt I42 driven by another pulley, not herein shown, fast on a shaft corresponding to the shaft 156 shown in the previously mentioned Letters Patent. The oil is forced by the pump I 38 through a pipe I44 into the chamber I28, this pipe having thereon to communicate with the chamber I26.

a pressure gage I46. From the chamber I26 the oil is conducted either to the chamber 54 to operate the piston 52 or back to the main chamber or reservoir I26, as determined by valve mechanism movable by the operator. This valve mechanism comprises a sleeve I48 (Figs. 3 and 5) movable upwardly and downwardly in a casing I56 secured within the casting 46. The casing I56 is provided with ports I52 which communicate with the chamber I28, and with other ports I54 which communicate with the chamber 54. Formed in the sleeve I46 are ports I56 arranged to communicate with the ports I52 in the casing I56, ports I56 whichcommunicate with the ports I54 in this casing, and other ports I66 arranged Ordinarily, as shown in Figs. 3 and 5, the chamber I23 is in communication with the chamber I26 through the ports I52, I56 and I60, so that the oil is circulated continuously by the pump with comparatively little pressure in the chambers I26 and 54. The ports I66 in the sleeve I48 are controlled by a piston I62 which is movable upwardly in the sleeve to close these ports and thereby to shut off communication with the chamber I26, so that the pressure of the oil in the chamber 54 is increased to operate the piston 52-. The piston I62 is formed on the lower end of a rod I64 which has also formed thereon another piston I66 located in the sleeve I46 above the ports I66. Located between the piston I66 and a head I61 on the upper end of the sleeve I48 is a compression spring I66 which tends to move the rod I64 and the piston I62 downward relatively to the sleeve, such downward movement being limited by the engagement with the head I61 of the socketed lower end of another rod I16 fast on the upper end-of the rod I64. Fast on the rod I16 is a thimble I12 which extends loosely through an opening in the cover I32 and is connected to an arm I14 to which upward movement may be imparted by a vertically movable bar I16 I the rod I16 through a spring I18 which bears at its lower end on a washer I86 engaged by the arm I14 and at its upper end on a washer I82 engaged by a pin I64 on the rod I16. Upward movement of the rod I16 and of the piston I62 is limited by engagement of a flange I85 on the piston with the, lower end of the sleeve I48, after which the spring I18 will yield in response to any further upward movement of the arm I14. The bar I16 is connected to the arm I14 by a latch I86 pivoted at I68 on the arm and held in a notch in the bar by a spring I96 connected at its lower end to a pin I 62 fast in the plate 64. This pin extends into a slot I64 in the bar I16 to limit the upward movement of the bar. At its lower end the bar I16 is pivotally connected by a pin-l96 to-the upper end of a link I98 the lower end of which is connected to a treadle 266 pivotally mounted on the bracket 16. It will thus be seen that when the operator depresses the treadle 2 66 the'bar I16 is raised and acts through the latch I86.

pin I96 serves to lower the bar I16 and return H the treadle when the operator removes his foot from the treadle.

Reference has been made to the fact that the sleeve I46 is movable upwardly and downwardly in the casing I56. The normal position of the sleeve relatively to the casing is determined by engagement of the head I61, on the sleeve with the upper end of the casing, and from this posi tion the sleeve is raised by the rod I64 through he spring I68 only a sufficient distance to effect apartial closure of the ports I56 before the piston I62 begins to move upward relatively to the sleeve. Such upward movement 'of the sleeve I48 is variably limited by means including a rod 264 slidingly movable vertically in a bracket 266 fast on the casting 48 and havingan enlarged lower end arranged to engage the head I61of the sleeve. At its upper end the rod 204 is engaged by a member 268 pivotally mounted on the bracket 266, and this member is arranged to engage the end of a screw 2I0 threaded in the bracket. It will be understood that the screw 2I6 adjustably limits the amount of'movement of the member 208 and accordingly the amount of upward movement of the sleeve I46 to determine the amount of opening of the ports I56 through which the oil must pass to the chamber 54. In this manner the speed of the movement of the jack by the fluid-pressure means is adjustably determined. The screw 2H! is conveniently adjusted by the operator by 'means of a knob 2I2 (Fig. 1) fast on a shaft 2I4 mounted in a bearing in the frame. This shaft is connected by a universal joint 2I6 to a shaft 2I3 slidingly mounted in a sleeve 22!! which is fast on another shaft 222 connected by a universal joint 224 to the screw 2I6. By reference to Fig.

2 it will be'seen that the shafts 2I8 and 222 have flat faces in engagement with each other for operating the shaft 222 by the turning of the shaft 2I8.

After the shoe has been forced upwardly against the holddown 4 by the'fluid-pressure means, the operator may desire to adjust it relatively to the holddown, as by tipping it laterally, before starting the power operation of the machine, and to facilitate such adjustment of the shoe it is desirable to relieve somewhat the pressure with which it is held against the holddown and the heel band. For this purpose the piston I62 (Fig. 3) and a portion of the rod I64 immediately above the piston are hollow, this portion of the rod being provided with small ports 226 7 the hollow piston.

to permit some of the oil under pressure to enter The piston I62 also is provided with ports 228 leading outwardly to a portion of the piston which is of reduced diameter and which permits escape of the 'oil from the piston through the ports I66 to the chamber I26 when the piston is lowered slightly from the position which it normally occupies when the jack is being operated upon by the fluid-pressure means. The rate at which the oil is thus per mitted to escape is controlled by a valve 230 threaded in the piston I62 and having a conical upper end restricting thefiow 'of the oil from the hollow portion of the rod I64. The short downward movement of the piston I62 to relieve the pressure with which the shoe is held against the holddown occurs in response to the action of the spring I68 when the operator permits a short reverse movement of the treadle 260. Thereafter the operator again fully depresses the treadle to cause the shoe to be pressed against the holddown by the full force of the fluid-pressure means.

The amount of pressure applied by the oil to the piston 52 to force the shoe against the heel band and the holddown is determined by a pressure control valve 232 verticallymovable in a casing 234 fast on the casting 48. This valve has ports 236 arranged to communicate with an annular recess 238 in the casing 234 when the valve is raised by pressure of the oil in the chamber I26, the annular recess 238 communicating with the chamber I26 through ports 240. It will thus be seen that when the valve is raised by pressure of the oil a by-pass is afforded for the oil from the chamber I 28 to the chamber I26. When the oil is thus permitted to escape from the chamber I28 it is nevertheless maintained under a predetermined pressure in this chamber and in the chamber 54 by reason of the fact that the valve 232 is controlled by a spring 242 against the resistance of which it is raised by the pressure of the oil. This spring is mounted on a rod 244 extending upwardly through an opening in a plug 246 threaded in the upper end of the casing 234, the opening being somewhat larger than the rod to permit escape of air above the valve 232 when the valve is raised. The spring 242 bears at its lower end upon a conical head formed on the rod and engaging the valve 232, and bears at its upper end on two centralizing members 248 having curved recesses to engage the rod 244 and outer curved faces in engagement with the wall of a conical recess in the plug 246. The two members 248 are separated by a sufiicient space to permit escape of air from above the valve, and they serve to maintain the rod 244 in a central position in the opening in the plug 246 without permitting it to rattle by contact with the plug. It will be understood. that by turning the threaded plug 246 the amount of compression of the spring 242 may be varied to vary the pressure of the oil'in the chambers 54 and I28 and accordingly the force with which the shoe is pressed against the heel band and the holddown.

While the operator holds the treadle 260 depressed -with the shoe pressed against the heel band and the holddown by .the fluid-pressure means, he starts the cycle of operations of the machine by tripping the clutchin the manner disclosed in the previously mentioned Letters Patent. In this cycle of operations control of the jack is assumed and maintained by automatic means which not only holds the shoe against the heel band and the holddown but 7 serves to increase the pressure of the shoe against these parts. For this purpose there is provided pawl-and-ratchet mechanism (not herein shown) acting through a pinion 259 (Fig. 1) to control the bar 32 for swinging the jack and other pawland-ratchet mechanism acting on a lever 252 connected to the slide 24 for controlling the jackand-ratchet mechanisms after they become effective, there is provided mechanism for rendering the fluid-pressure means inoperative by swinging the latch I86 (Fig. 3) into position to disconnect the arm I14 from the bar I16. The latch is provided with an arm 266 (Figs. 2 and 3) which carries a pin 262 extending into a slot 264 in a link 266, this link being connected at its upper end to the member 258. When the arm I14 is raised by the treadle the pm 262 is carried upwardly to a position near the upper end of the slot 264, and when the member 258 receives its counterclockwise movement, which occurs near the beginning of the cycle of operations, the link 266 is moved downwardly and acts on the pin 262 to swing the latch I 86 out of the notch in the bar I16. The arm I14 is thus released for downward movement, and accordingly the valve parts controlled by the treadle are restored to their initial positions by the springs I68 and I90 to permit free circulation of the oil.

In the use of the machine constructed as described the operator mounts a shoe on the jack and then depresses the treadle 200, thereby rais- In order that the jack and its v post I4 may be controlled solely by these pawlingthe bar I16 to the limit determined by the pin I92 and the slot I94. In this operation the rod I10 of the valve mechanism is lifted by the arm I14 and acts first through the spring I68 to lift the valve sleeve I48 to the position adjustably determined by the screw 2III controlling the members 204 and 208. This provides an adjustably restricted passage for the oil through the ports I56to determine the speed of movement of the jack. As the arm I14 continues its upward movement it acts to raise the piston I62 to the limit determined by engagement of the flange I 85 on the piston with the lower end of the sleeve I48, after which the spring I'I8 yields in response to any further upward movement of the arm.

The ports I88 are thus closed by the piston I62 to,

interrupt the circulation of the oil, so that the pressure of the oil in the chamber 54 is increased and acts to raise the piston 52. By such upward movement of the piston 52 the bar 62 is raised to swing the jack rearwardly through the connections 66, 68, 46 and 48 to carry the shoe against the heel band. As soon as the lever 40 is released by the member I2 in this swinging movement of the jack this lever is also swung about its fulcrum rod 42 to raise the jack post I4 and carry the shoe against the holddown in the manner hereinbefore described. The pressure with which the shoe is forced against the heel band and the holddown is determined by the control valve 232 which is raised against the resistance of the spring 242 until its ports 236 afford an outlet for the oil. If the operator should desire to adjust the shoe relatively to the holddown after it has thus been presented, he permits a short retractive movement of the treadle in response to which the piston IE2 is lowered enough to provide a restricted outlet for the oil through the ports 225 and 228, thus relieving the pressure with which the shoe is held against the holddown and the heel band. By the above-mentioned upward movement of the bar 62 the bell-crank lever III) is swung against the resistance of its spring H6,

so that the rod I22 will permit the required rearward swinging movement of the jack.

After the shoe has thus been presented against the heel band and the holddown by the fluidpressure means the operator starts the cycle of operations of the machine. Early in the cycle the pawl-and-ratchet mechanisms hereinbefore referred to assume control of the jack and of its post I4 in response to turning movement of the member 258 (Fig. 1) in a counterclockwise direction. In response to the movement of this meme ber the link 266 acts on the latch I86 to release the arm I'I4 from the bar I16, thus permitting the valve sleeve I48 and its piston I62 to be returned to their initial positions by the spring I540. The pressure of the oil in the chamber 54 is thus relieved, permitting the piston 52 and the bar 62 to be moved downward by gravity. By such downward movement of the bar 82 the lever 48 is swung about its fulcrum rod 42 to such a positionthat its roll 16 will again meet the face I4 of the member I2 when the jack is swung forwardly. The bell-crank lever I I8 remains in the position to which it was previously moved by the bar 62 until the jack and its post I4 are released by the pawl-and-ratchet mechanisms near the end of the cycle, whereupon the spring II6 acts through the bell-crank lever and the rod I22 to initiate the forward swinging movement of the jack.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a shoe machine, the combination with means for operating on a shoe, of a shoe support mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a member movable relatively to other portions of the swinging support for moving the shoe also heightwise to present it to said means, and fluid-pressure mechanismfor swinging said support and for operating said member.

2. In a shoe machine, the combination with power-driven means for operating on a shoe in a cycle of operations of the machine, of an abutment for engaging an end of the shoe, a holddown for engaging the bottom of the shoe, a jack mounted for swinging movement to carry the shoe against said abutment and including a member movable relatively to other portions of the jack for moving the shoe heightwise against said holddown, and fluid-pressure mechanism arranged to be actuated to swing said jack and to operate said member prior to the starting of the cycle of operations of the machine.

3. In a shoe machine, the combination with means for .operating on a shoe, of a jack mounted for movement to carry a shoe lengthwise toward said operating means and including a post movable relatively to other portions of the jack to impart also a heightwise movement to theshoe, a member arranged to be operated by pressure of fluid against it, and connections for operating said jack and post to impart the length- Wise and heightwise movements to the shoe by the movement of said member.

4. In a shoe machine, the combination with means for operating onv a shoe, of a jack mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a a post upwardly movable relatively to other portions of the jack to raise the shoe, a lever mounted on the jack for lifting said post, a member connected to said lever for operating it, said lever and member being so arranged relatively to the jack as also to cause the jack to be swung bythe movement of said member, and fluid-pressure mechanism for operating said member.

5. In a shoe machine, the combination with means for operating on a shoe, of a jack mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a post upwardly movable relatively to other portions of the jack to raise the shoe, a lever mounted on the jack for lifting said post, a member connected to said lever for operating it, said lever and member being so arranged relatively to the jack as also to cause the jack to be swung by the movement of said member, a device movable in response to pressure of fluid against it to operate said member, a pump for supplying fluid under pressure, and valve means for rendering the fluid supplied by said pump effective to'operate said device.

6. In a shoe machine, the combination with means for operating on a shoe, of a jack mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a post upwardly movable relatively to other portions of the jack to raise the shoe, a lever fulcrumed on the jack for lifting said post, a mem ber connected to said lever for operating it, said lever and member being so arranged relatively to the jack as also to cause the jack to be swung by the movement of said member, and means for preventing the lever from swinging about its fulcrum to lift the post until after the jack has been swung a predetermined distance by said member.

'7. In a shoe machine, the combination with means for operating on a shoe, of a jack mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a post upwardly movable relatively to other portions of the jack to raise the shoe, a lever fulcrumed on the jack for lifting said post, a member connected to said lever for operating it, said lever and member being so arranged relatively to the jack as also to cause the jack to be swung by the movement of said member, and a device arranged to act on said lever to prevent it from swinging about its fulcrum to lift the post until after the jack has been swung a predetermined distance and then to release the lever, said device being adjustable ,to vary the time when the lever is thus released.

8. In a shoe machine, the combination with means for operating on a shoe, of a jack mounted for swinging movement to carry a shoe lengthwise toward said operating means and including a post upwardly movable relatively to other portions of the jack to raise the shoe, mechanism connected to thejack and tending in operation both to swing the jack and to lift said post, and a device for controlling said mechanism to prevent it from lifting the post until after the jack has been swung a predetermined distance. r

9. In a shoe machine, the combination with means for operating on a shoe, of an abutment for engaging an end of the shoe, a holddown for engaging the bottom of the shoe, a jack mounted i for swinging movement to carry the shoe lengthwise to a position under said holddown and against said abutment and including a post upwardly movable relatively to other portions of the jack to carry the shoe against the holddown, mechanism connected to the jack and tending in operation both to swing the jack and to lift said post, and a device for controlling said mechanism to prevent it from lifting the post until after the jack has been swung far enough to carry the shoe under the holddown.

10. In a shoe machine, the combination with means for operating on a shoe, of an abutment for engaging an end of the shoe, a holddown for engaging the bottom of the shoe, a jack mounted for swinging movement to carry the shoe lengthwise to a position under said holddown and against said abutment and including a post upwardly movable relatively to other portions of the jack to carry the shoe against the holddown, mechanism connected to the jack and tending in operation both to swing the jack and to lift said post, a device for controlling said mechanism to prevent it from lifting the post until after the jack has been swung far enough to carry the shoe under the holddown, and means for retarding the swinging of the jack to insure lifting of the post by said mechanism as soon as permitted by said device.

11. In a shoe machine, the combination with means for operating on a shoe, of an abutment for engaging an end of the shoe, a holddown for engaging the bottom of the shoe, a jack mounted for swinging movement to carry the shoe lengthwise to a position under said holddown and against said abutment and including a post upwardly movable relatively to other portions of the jack to carry the shoe against the holddown, a lever mounted on the jack for lifting said post, a member connected to said lever for operating it, said lever and member being so arranged relatively to the jack asalso to cause the 'jack to be swung by the movement of said member, a. device arranged to prevent said lever from impart also a heightwise movement to the shoe,

a member arranged to be operated by pressure of fluid against it for operating said jack and post to impart the lengthwise and heightwise movements to'the shoe, a continuously operat ing pump for effecting a circulation of fluid, valve means for interrupting the circulation of the fluid to cause an increase in the pressure of the fluid against said member, and a pressure control valve arranged to permit escape of fluid when a predetermined pressure is attained to determine the amount of force applied to said member.

13. In a shoe machine, the combination with means for operating on a shoe, of a shoe support movable to present a shoe to said operating means, a device movable by pressure of fluid against it for thus moving said shoe support,

a source of supply for the fluid, and valve mechanism for controlling the fluid, said valve mechanism comprising a member movable to render the fluid effective to operate said device and another member movable to an adjustably predetermined position in time relation to the movement of said first-named member to afford a variably restricted passage for the fluid and thereby to determine the speed of the movement of the shoe support by said device.

14. In a shoe machine, the combination with means for operating on a shoe, of a shoe support movable to present a shoe to said operating means, a device movable by pressure of fluid against it for'thus moving said shoe support, a source of supply for the fluid, and valve mechanism for controlling the fluid, said valve mechanism comprising a member movable to render the fluid effective to operate said device and another member movable to an adjustably predetermined position to afford a variably restricted passage for the fluid and thereby to determine the speed of the movement of the shoe support by said device, and a connection common to both said members for operating them.

15. In a shoe machine, the combination with means for operating on a shoe, of a shoe support movable to present a shoe to said operating means, a device movable by pressure of fluid against it for thus moving said shoe support, a source of supply for the fluid, and valve mechanism for controllingthe fluid, said valve mechanism comprising a sleeve member having ports therein and a piston movable relatively to. said sleeve member to render the fluid effective to operate said device, the sleeve member also being movable to an adjustably predetermined position each time the piston is thus operated to afford a variably restricted passage for the fluid and thereby to determine the speed of the movement of the shoe support by said device.

16. In a shoe machine, the combination with means for operating on a shoe, of a shoe support movable to present a shoe to said operating means, a device movable by pressure of fluid against it for thus moving said shoe support, a continuously operating pump for efiecting a circulation of fluid, valve mechanism comprising a sleeve member having a port therein through which the fluid is thus circulated and a piston movable to close said port to interrupt the circulation of fluid and cause the fluid to.

for engaging the shoe, a shoe support movable to force the shoe against said holddown, a device movable by pressure of fluid against it for thus moving said shoe support, a source of supply for the fluid, valve mechanism for controlling the fluid, and a controlling member for moving said valve mechanism to render the fluid effective to operate said device, said valve mechanism having a restricted passage for the fluid arranged to open fully in response to a short retractive movement o1 said controlling member to relieve the pressure of the shoe on the holddown while the shoe is still maintained in contact with the holddown by the fluid-operated device.

18. In a shoe machine, the combination with means for operating on a shoe, of a holddown for engaging the shoe, a shoe support movable to force the shoe against said holddown, a device movable by pressure of fluid against it for thus moving said shoe support, a continuously operating pump for effecting a circulation of fluid, valve mechanism comprising a sleeve member having a port therein through which the fluid is thus circulated and a piston movable to close said port to interrupt the circulation of fluid and cause the fluid to operate said device, and a controlling member movable to operate said piston, the piston having a restricted passage through it for the fluid arranged to communicate with said port in response to a short retractive movement of said controlling member to relieve the pressure of the shoe on the holddown while the shoe is still maintained in contact with the holddown by the fluid-operated device.

19. In a shoe machine, the combination with power-driven means for operating on a shoe in a cycle of operations of the machine, of a shoe support movable to present a shoe to said operating means, fluid-pressure means for thus moving the shoe support prior to the starting of the cycle of operations of the machine, mechanism for controlling the shoe support in the cycle of operations, and automatic means for rendering the fluid-pressure means inoperative near the beginning of the cycle.

20. In a shoe machine, the combination with power-driven means for operating on a shoe in a cycle of operations of the machine, of a shoe support movable to present a shoe to said operating means, a device operative by pressure of fluid against it for thus moving the shoe support prior to the starting of the cycle of operations of the machine, a source of supply for. the fluid, valve mechanism for controlling the fluid, a member movable by the operator to operate said valve mechanism and thereby render said fluid-operated device eflective to move the shoe-support, mechanism for controlling the shoe support in the cycle of operations of the machine, and automatic means for disconnecting the valve mechanism from said member to render said fluid-operated device ineffective to control the shoe support in the cycle of operations.

21. In a shoe machine, the combination with power-driven means for operating on a shoe in a cycle of operations of the machine, of a shoe support movable to present a shoe to said operating means, fluid-pressure means for thus moving the shoe support prior to the starting of the cycle of operations of the machine, a member movable by the operator to render said fluid-pressure means operative, mechanism arranged to assume control of the shoe support in the'cycle of operations of the machine, and automatic means for rendering said fluid-pressure means inoperative when said mechanism assumes control of the shoe support. 22. In a shoe machine, the combination with means for operating on a shoe, of a shoe support movable to present a shoe to said operating means, fluid-pressure means for thus moving said shoe support, a member movable idly by said fluid-pressure means, and a spring for thereafter moving said member reversely and for thereby imparting a return movement to the shoe support.

23. In a shoe machine, the combination with means for operating on a shoe, of a jack mounted for swinging movement to present a shoe to said F operating means, a device operative by pressure of fluid against it for thus swinging the jack, a bell-crank lever movable by said device, and a spring for thereafter moving said bell-crank lever reversely and for thereby initiating return movement of the jack.

JACOB C. JORGENSEN. 

